baber/WOPTO huggingface dataset:
Patent CA-2033260-C (CA)
Title: Memory access methods and apparatus
Inventor: UEDA TOMOAKI
IPC: G06F12/16
Filed: 1990-12-27
Granted: 1997-09-30
Abstract: A memory access method convolutes plural data using maximal-sequence codes phase shifted by individual quantities and writes the convoluted data into a cyclic memory. A memory access apparatus reads out a desired data from the cyclic memory using a corresponding maximal-sequence code. Another memory access method convolutes plural data using sequence codes for which are obtained weighting factors and maximal sequence codes phase shifted by individual quantities and writes the convoluted data into a cyclic memory.  Another memory access apparatus reads out a desired data from the cyclic memory using a corresponding maximal-sequence code.  Still another memory access method convolutes plural data using maximal-sequence codes phase shifted by individual quantities and writes the convoluted data into a cyclic memory.  Still another memory access apparatus reads out desired data from the cyclic memory using sequence codes which are obtained by weighting factors and maximal-sequence codes phase shifted quantities by individual.
Patent CA-2033264-C (CA)
Title: Anti-skid device for use on pneumatic tires for automotive vehicles
Inventor: KOSHI MASAKI
IPC: B60C27/14
Filed: 1990-12-27
Granted: 1995-12-12
Abstract: An anti-skid device for use on pneumatic tires of an automotive vehicle according to the present invention comprises a supporting ring (31) rotatably provided on the outer circumferential periphery of a mounting plate (21) that is detachably mounted on the wheel portion of the automotive vehicle, a plurality of ribs (41) formed from a material having elastic force and toughness that are provided on the supporting ring (31) in a radial fashion and are bent so as to extend from the outer side of a pneumatic tire (1) to a tread thereof, first and second endless bands (51), (52) provided on the leading-end portion of each of the ribs (41) in such a manner as to be located within the width of the tread of said pneumatic tire (1), rivets (53) secured at portions where the first and second bands (51), (52) intersect the ribs (41), and a prevention means provided on either of the first and second bands (51), (52) for preventing the occurrence of imbalance of the degree of stretch between the first and second bands (51), (52).       Insertion and fixation holes (24) each comprising a large diameter portion (25) and a small diameter portion (26) are formed in the mounting plate (21) with the large diameter portions (25) being designed to be opened and/or closed by means of stoppers (66) after the leading-end portions (7) of wheel nuts (5) of the automotive vehicle have been put through the large diameter portions (25) so as to be then moved to the small diameter portions (26) to be secured in place therein.
Patent CA-2039729-C (CA)
Title: Radio channel switching control method
Inventor: MAEBARA AKIHIRO
IPC: H04W36/08
Filed: 1990-08-24
Granted: 1995-06-27
Abstract: The present invention is directed to a radio channel switching control method for a digital mobile communication system employing TDMA techniques, in which a mobile station stores the synchronized state in the current channel, switches the current channel to a new one and performs a pull-in operation for a predetermined period of time and stores the synchronized state obtained by the pull-in operation.  The mobile station establishes synchronism with the new channel by repeating a sequence of steps of performing communication again in the synchronized state in the current channel and performing the pull-in operation in the stored synchronized state for the new channel.  Thus, it is possible to implement radio channel switching free from momentary interruption of communication, by maintaining communication in the current channel until synchronization with the new channel is established and communication is permitted.  A common reference clock is applied to a plurality of pieces of radio equipment in a base station and each radio equipment obtains a synchronized state parameter for an arbitrary slot of the channel allocated thereto. When it is judged that channel switching is necessary, the synchronized state parameter in the current channel is set in the radio equipment of the new channel, by which the radio equipment of the new channel is caused to immediately start reception in the same synchronized state as in the current channel.
Patent CA-2041532-C (CA)
Title: Urethane sealant having improved sag properties
Inventor: KHALIL HAMDY
IPC: C08G18/48
Filed: 1991-04-30
Granted: 2002-01-01
Abstract: The present invention is directed to a urethane sealant composition comprising a reactive non-sag component. The sealant composition preferably comprises blends of a polyether and/or polyester urethane prepolymer component and a non-sag component preferably comprising a urethane prepolymer having a backbone comprising one or more polyalkylene oxide chains.
Patent CA-2041649-C (CA)
Title: Apparatus and method of mixing propellant charge powder rods
Inventor: KLEINHANS HELMUT
IPC: B01F13/00
Filed: 1990-08-29
Granted: 1994-06-28
Abstract: Abstract of the Disclosure An apparatus for mixing propellant charge powder rods and a method of mixing them are indicated. The apparatus comprises a flexible band (1) which is suspended freely in a loop between two paraxial, radially spaced drums (2,3) and is movable back and forth between the drums (2,3) by drive means (6,7). The band (1) is finite and movable in reciprocation between two winding drums (4,5) each adapted to be driven in either direc-tion of rotation by the drive means (6,7). The propellant charge powder rods (30) are placed in the suspended loop of the flexible band (1) - transversely of the longitudinal direction of the band - and are mixed together by moving the band (1) back and forth. The length of the loop is increased and decreased periodically during this process.
Patent CA-2041960-C (CA)
Title: Control apparatus and method responsive to a changing stimulus
Inventor: SURJAATMADJA JIM B
IPC: E21B47/06
Filed: 1991-05-06
Granted: 1994-06-14
Abstract: A control system and method utilizing a race between two responses to a changing stimulus are disclosed.  An example of a changing stimulus is pressure which increases at a decreasing rate of change during a closed-in period of a drill stem test in an oil or gas well.  In a preferred embodiment two components are moved  in different directions,  but in a net first direction, until the rate of change of the pressure is sufficiently low (e.g., near steady state), at which time the rates of movement of the two components produce net movement in a second direction.          In a preferred embodiment, the change in direction of the net movement moves  a control valve which communicates  a pressure control signal for opening a bypass valve to commence a flow period of the drill stem test.
Patent CA-2043874-C (CA)
Inventor: WHEELER DALE K
IPC: B23B31/12
Filed: 1991-06-04
Granted: 1995-02-14
Abstract: A keyless chuck (10; 301) comprises a jaw housing (28; 311) with jaws (32; 333, 335, 337) which are slidably mounted in guideways (40; 319, 321, 323) between a rearward opened position and a forward closed position.  A jaw thrust member (34; 345) is coupled to the jaws and is slidably mounted in the jaw housing to apply a thrust force to the jaws and to maintain the jaws in the same relative axial location.  A nut (42; 355) is fixed to the jaw housing and has a threaded opening (46; 357) coaxial with the chuck axis (Ax).  A threaded spindle (48; 305) is engaged in the nut opening and is movable forwardly to apply clamping force to the jaws and rearwardly to remove clamping force.  The spindle preferably engages the jaw thrust member through a small area contact patch (72; 401) to limit operating friction.  The jaws either may be opened and closed responsive to rearward and forward movement of the spindle respectively or to simplify loading of a bit in the chuck, may be spring biased forwardly to a closed position (self-centering) and thus not movable responsive to movement of the spindle.  A lock mechanism (22, 104, 42; 309) is preferably provided to limit relative rotation between the nut and spindle to prevent the application of excessive clamping force and to limit removal of clamping force.  The lock mechanism also preferably permits incremental self-tightening when in the locked position through an automatic tightener (397) and through the sizing and spacing of two sets of teeth (373, 375) to limit the application and removal of clamping force on a drill bit.  To limit the run out in a finished chuck, deformable (during assembly) interfaces (204; 401) are preferably provided between the jaw housing and nut and between the spindle and jaw thrust member (stop).  To further enhance the accuracy of assembly and to reduce run out, the spindle and nut preferably have a smoothed walled interface (415, 417) to accurately control coaxial alignment of the nut and spindle.
Patent CA-2046395-C (CA)
Inventor: NAGENGAST WILLIAM EMIL
IPC: F21V31/03
Filed: 1991-07-05
Granted: 1999-08-31
Abstract: A headlamp having a mounting hole formed in the curved outer surface of a reflector housing along an axis which is generally parallel to the optical axis of the housing and which is adapted to receive a push-in type vent device formed with a skirt having a configuration that provides a good sealing relationship with the curved outer surface of the housing.
Patent CA-2050110-C (CA)
Title: Method and means for strengthening an article and the article so produced
Inventor: CARSON STEPHEN W
IPC: C03C17/30
Filed: 1991-08-28
Granted: 1997-04-22
Abstract: An improvement in the functional properties of a brittle substrate such as glassis achieved by application of an aqueous solution of a silane to the surface of the substrate. The solution comprises monomeric materials containing silanols, and incorporates at least one function such as strength, color and radiation modification. The materials of principal interest are silanes with at least one alkoxy group connected to silicon, and preferably having three alkoxy groups. The alkoxy silanes are dissolved in an aqueous solution in concentrations of from 1 to 100% by weight.  After application, the coatings are cured. Coated articles are provided with useful characteristics.
Patent CA-2053598-C (CA)
Inventor: SARGEANT JOHN PETTER
IPC: G01N15/06
Filed: 1991-10-16
Granted: 2008-12-16
Abstract: A procedure for detecting particles in a fluid stream, comprising utilizing one or more probes (1) provided with at least one measuring element or erosion element (3). The probe is placed in a fluid stream, and the particle content is quantitatively determined by measuring changes of electrical resistance as a function of erosion (r) of the measuring element by contact with particles moving in the stream. The probe may be equipped with a measuring head having a V-like shape directed upstream, and the two planar surfaces defined by the V-like shape may each be equipped with one or more measuring elements.
Patent CA-2053706-C (CA)
Title: Sintered ceramic body for a spark plug insulator and method of sintering the same
Inventor: SUGIMOTO MAKOTO
IPC: H01T13/38
Filed: 1991-10-21
Granted: 1997-07-08
Abstract: In a sintered ceramic body used for a spark plug insulator, the ceramic body has silicon nitride (Si3N4), aluminum nitride (AlN) and alumina (Al2O3). Reduced weight percentage of the silicon nitride (Si3N4), aluminum nitride (AlN) and alumina (Al2O3) in the sintered ceramic body falls within an area surrounded by points A (91.5, 1.5, 7.0), B (91.5, 2.5, 6.0), C (91.5, 3.5, 5.0), F (83.0, 7.0, 10.0), J (66.0, 14.0, 20.0), O          (50.0, 20.5, 29.0), T (41.0, 24.0, 35.0), S (41.0, 17.0, 42.0), R (41.0, 10.0, 49.0), M (50.0, 8.5, 41.5), H         (66.0, 6.0, 28.0), D (83.0, 3.0, 14.0) and A (91.5, 1.5, 7.0) at a three-component diagram. As one sintering additive, yttrium oxide (Y2O3) is selected, weight percentage of the sintering additive ranges from 0.3 % to 15.0 % of the total weight of the silicon nitride (Si3N4), aluminum nitride (AlN) and alumina (Al2O3).
Patent CA-2057521-C (CA)
Title: Disposable garments
Inventor: IGAUE TAKAMITSU
IPC: A61F5/44
Filed: 1991-12-12
Granted: 2001-10-16
Abstract: In garments such as disposable diapers, an absorbent core 13 is provided on laterally opposite sides thereof with first and second flaps 15, 16 adapted to turn up under their own elastic shrinking potential. A tensile stress of each second flap 16 is adjusted to be lower than that of each first flap 15, a width of each second flap 16 is dimensioned to be larger than that of each first flap 15 and a stiffness of each second flap 16 is adjusted to be lower than of each first flap 15.
Patent CA-2059245-C (CA)
Title: Method and apparatus for calendering and coating/filling sutures
Inventor: CHESTERFIELD MICHAEL P
IPC: A61L17/00
Filed: 1992-01-13
Granted: 2004-07-06
Abstract: A method for calendering a suture includes passing the suture lengthwise between two pairs of calendering rollers each pair being oriented orthogonally to the other pair. The suture may be coated and/or filled by passing it through the contacting region of a suture filling applicator to which filling agent is supplied by a metering pump. The filling process may be computer controlled.
Patent CA-2059774-C (CA)
Title: Method and apparatus for producing elevated pressure nitrogen
Inventor: CHEUNG HARRY
IPC: F25J3/04
Filed: 1992-01-21
Granted: 1994-12-13
Abstract: METHOD AND APPARATUS FOR PRODUCING      ELEVATED PRESSURE NITROGEN                            ABSTRACT A method and apparatus for producing elevated pressure nitrogen with improved recovery comprising a primary column and a lower pressure auxiliary column wherein auxiliary column top vapor is condensed, pressurized and passed into the primary column.
Patent CA-2061054-C (CA)
Title: Object-based irregular-grid volume rendering
Inventor: LUCAS BRUCE D
IPC: G06T15/50
Filed: 1992-02-12
Granted: 1998-09-22
Abstract: Method and apparatus for rendering data for display. The data represents a model space and the method includes the following  steps.  A  first  step  associates  individual points in the model space with individual vertices (V) of an irregular grid cell enclosed by faces.  Each of the points  has  an associated  luminosity  value  and  an associated opacity value. A next step orders the faces of the grid cells. The faces are preferably ordered by depth referenced to  a view plane.  A further  step processes individual faces for determining,  for all viewing rays that project  from pixels  on the view plane  and that intersect the face being processed,  an amount of light arriving at the pixel. The amount of light arriving at the pixel is a function of both the luminosity and the opacity of a grid cell that lies adjacent to the face and through which the viewing ray passes.
Patent CA-2061740-C (CA)
Title: Method and arrangement for finely grinding minerals intended for use as fillers
Inventor: BOGEN JAN ODD
IPC: B02C17/16
Filed: 1992-02-24
Granted: 1996-12-24
Abstract: The present invention relates to a method for finely-grinding minerals and similar material intended for use as filler material to a particle size appropriate for this purpose, with the aid of a mill which operates with agitated grinding medium and in which the material is ground in a substantially dry state. The invention is characterized by predetermining the stay time of the material being ground in the mill; maintaining the predetermined stay time partly by discharging ground material from the mill at a predetermined, essentially constant rate, and partly by adjusting the infeed of material to the mill in relation to the quantity of material discharged from the mill such that the amount of material present in the mill increases during the infeed of material thereto; and by interrupting the infeed of material to the mill over a predetermined short period of time when the material reaches a prede-termined highest level in said mill.          The invention also relates to an arrangement for carry-ing out the method. This arrangement is characterized in that it includes a first motor-driven device which functions to control the infeed of material, a mill for grinding with the aid of an agitated grinding medium, a perforated disc which functions to separate grinding medium from the ground material leaving the mill, a second motor-driven device which functions to maintain a substantially constant outfeed of ground material from the mill, and a level monitor which is mounted in the upper part of the mill and connected to the motor-driven infeed device.
Patent CA-2064893-C (CA)
Title: A method of manufacturing an insulated/insulatable reinforced building element in concrete
Inventor: AUSDAL THORLEIF
IPC: E04C2/04
Filed: 1990-08-21
Granted: 1999-11-09
Abstract: A rational production process for the manufacturing of insulated/isolatable building elements (foundation, wall, roof, ceiling or floor elements) in reinforced (4, 11, 12) concrete and having pegwood-forming ledges (4') connected (16, l7) to the reinforcement (4, 11, 12) and joining a concrete plate (2) via reinforced (11, 12) concrete ribs (3). For the casting process; a rectangular horizontally oriented upward open casting mould (13, 13') is utilized. One type of element is to have spaced cavities (15) for the subsequent embedment of soft insulation mats. For this type of elements, one uses a casting mould (13, 13') having spaced fixed cavity boxes (14), the spacings therebetween accomodating said pegwood-forming ledges (4'). A connection between said ledges (4') and said reinforcement (11, 12, 16, 17) is established within said mould (13, 13'). A main reinforcing net (4) is now positioned and attached to the reinforcing means (12) of the ledges (4').  Thereafter, concrete is filled into the mould. Prior to, during or immediately subsequent to hardening, one may effect the desired working on the freely accesible to surface (2) of concrete.
Patent CA-2072379-C (CA)
Title: Vehicle position and azimuth computing system
Inventor: TSUJI HIROAKI
IPC: G01C21/00
Filed: 1992-06-25
Granted: 1998-04-21
Abstract: An vehicle position and azimuth computing apparatus is constructed to correct both of a positional error and an azimuth error caused by the accumulation of a sensor error and a map error and to provide both high positional precision and high azimuth precision.  To this end, the vehicle position and azimuth computing apparatus operates to detect both an angular velocity and a moving distance of a vehicle, to compute an on-vehicle position and on-vehicle azimuth, and to detet a straight running condition of the vehicle.  Then, after the GPS measurement positions during the straight running of the vehicle have been obtained, regression lines are obtained by regressing the longitudes and latitudes of the measurement positions during the straight running of the vehicle to the moving distance from the straight running starting position of the vehicle.  Both of a vehicle position and a vehicle azimuth are computed based on the regression lines during the straight running of the vehicle, and then an on-vehicle position and an on-vehicle azimuth, which have been computed based on the detected values of the angular velocity and the moving distance of the vehicle, are modified by using the vehicle position and azimuth obtained based on the GPS measurement data.
Patent CA-2078398-C (CA)
Title: Vertical blind with single-element drive
Inventor: BENTHIN SIEGFRIED
IPC: E06B9/36
Filed: 1992-09-16
Granted: 1997-01-07
Abstract: A vertical blind construction, including slats arranged hanging on a slat carriage each, tiltably around a vertical axis, and with a driving element (1), whose direction of movement is reversible, or a gear, which can be connected by coupling elements to an endless pull cord (6) for laterally displacing the slat carriages guided in a support rail (31), and to a grooved shaft (11), which passes through a tilting gear for tilting the slats in the slat carriages. The rotatable driving element (1) in connection with a planetary gear, wherein the driving element (1) is connected to the central gear (2), whose outer ring (4) is connected by a first recording disk idling gear (5), whose idle is adjusted to a slat tilt angle of 180°, to a drive gear (7) or the pull cord (6) and, via an intermediate gear (10) as well as a slip clutch (13), to the grooved shaft (11). The slip clutch (13) is associated with a second recording disk idling gear (12) for a slat tilt angle which likewise corresponds to 180°, which second recording disk idling gear opens, at the end of its idle running, the slip clutch (13), and the first recording disk idling gear (5) disengages, at the end of its idle running, against the action of a spring, a movably guided shifting element (17), which blocks the rotation of the drive gear (7) for the pull cord (6).
Patent CA-2078963-C (CA)
Title: Procedure for the production of alkyl carbonates
Inventor: RIVETTI FRANCO
IPC: C07C68/00
Filed: 1992-09-23
Granted: 2004-02-10
Abstract: Dialkyl carbonate is prepared by reacting an alcohol with a gaseous mixture of carbon monoxide and oxygen in the presence of cuprous chloride as catalyst and hydrochloric acid as in situ regenerator of the catalyst.
Patent CA-2079279-C (CA)
Inventor: HAIN MATTHEW E
IPC: A61L31/04
Filed: 1992-09-28
Granted: 2004-08-31
Abstract: A surgical mesh of warp knit construction is fabricated from a polypropylene multifilament yarn.
Patent CA-2079674-C (CA)
Title: Device for disconnectably connecting cable wires
Inventor: FREMGEN DIETER
IPC: H01R4/24
Filed: 1991-04-12
Granted: 2000-10-24
Abstract: A device (1) is described for disconnectably connecting cable wires to a contact plate (2). The contact plate contains a through opening (9) and, in use, one of the cable wires to be contacted is urged into contact with the edges of that opening (9). The cable wire is moved by a thrust piece (3) which also contains a through opening (24) and which is moved relative to the through opening (9) in the contact plate by means of a screw element.
Patent CA-2085354-C (CA)
Title: Ether lipid-nucleoside covalent conjugates
Inventor: PIANTADOSI CLAUDE
IPC: C07F9/10
Filed: 1991-06-14
Granted: 2002-08-27
Abstract: Ether lipid nucleoside covalent conjugates and derivatives thereof are disclosed, along with pharmaceutical compositions containing the same and methods of using the same to combat HIV-1 infections.  Illustrative are 3'-Azido-3'-deoxythymidine-5'-monophosphate-D,L-3 octadecanamido-2-ethoxypropane and 3'-Azido-3'-deoxythymidine-5' butyrate-y-N,N,N-trimethyl-am-monium-.beta.-(1-phospho-2-ethoxy-3-hexadecylozypropane).
Patent CA-2086630-C (CA)
Inventor: MURAKAMI MASAKI
IPC: A61F13/15
Filed: 1993-01-04
Granted: 1997-01-28
Abstract: To control a flow of body fluid generally occurring on the liquid-permeable  topsheet  for  body  fluid  absorbent article in a predetermined direction, here is disclosed  an improved liquid-permeable topsheet  made  of  thermoplastic synthetic resin comprising a plurality of  first  direction ribs and a plurality of second direction ribs crossing  the first direction ribs so as to a unique rib structure.  Tops 7 of  the  second  direction  ribs  3  are  connected  with opposite sides 6 of the respective first direction  ribs  2 and each pair of adjacent first direction ribs 2  define  a groove  10  serving  to  guide  the  body  fluid   in   the predetermined direction.